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Summary

Expedition 401  Mediterranean-Atlantic Gateway Exchange began in Amsterdam, Netherlands on December 12th and ended in Naples, Italy on February 9th. We drilled a total of 4 sites for the extent of the expedition recovering sediment. The samples processed in the x-ray lab where as follows:

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  • Bulk (~2hr scan)
    • random mount
    • 4°-70° 
    • Step: 0.02°
    • Scanning speed: 2s/step
  • Clay (~1hr scan)
    • oriented mount
    • 4°-40° 
    • Step: 0.02°
    • Scanning speed: 2s/step

Issues

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The Bruker Sample handler arm got stuck in because when unloading a sample carrying the basket that the sample goes in to go into the machineit also took the sample tray with it. The handler does and up and down quick movement, but it doesn't initialize. This happened twice in one day the first time I was able to initialize the machine and it continued making measurements, but after it took the sample out it got stuck again. This had one other time during the expedition, but just by restarting the machine the sample handler gained back movement. This time it does not move in X or Y axis, you just get some movement of Z axis. I wasn't able to finish running the samples in the Bruker after this happened since the sample handler won't move positions. You can only readjust the sample handler when the machine is off. The machine also won't initialize so I can't manually measure the samples either. There is a device component not ready sample changer error when trying to initialize the machine. The 10 samples left for measurement were glycolations, and a similar measurement program was made for the AERIS and the remaining samples where measured there. XRD commander is also not able to initialize the machine.

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